Kubota WSM L3560, Workshop Manual

Page: 122 / 801

ENGINE
L3560, L4060, L4760, L5060, L5460, L6060, WSM
1-M7
Separator
The separator has a function of separating fuel and
water through difference in specific gravity. There is a
read float (7) with a specific weight of 0.9 made of a
polypropylene material inside that has properties in that
it is heavier than diesel and lighter than water.
When fuel containing water enters the separator,
water with a high specific weight pools in the bottom of a
cup (2) and causes the float to float. The state of mixing
in of water can be recognized by the state of the float and
can be visually inspected externally.
Fuel with a low specific weight flows over the top of
the cup but passes through the element (5) provided
inside enabling filth to be removed from the fuel.
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Fuel Cooler
The fuel cooler (1) is set downstream of the
separator and is used to cool the fuel.
When the pressure of fuel is increased, the
temperature also rises. The fuel in the common rail
system is raised to high pressure so the fuel temperature
also rises. If the fuel temperature rises too much, output
and durability are reduced. A fuel cooler that suppresses
fuel temperature rise is provided to prevent this.
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(1) Fuel Valve
(2) Cup
(3) Retainer Ring
(4) O-ring
(5) Element
(6) Spring
(7) Red Float
(1) Fuel Cooler
KiSC issued 03, 2016 A